/*
 * Copyright (c) 2006-2007 Zsolt Szasz <zsolt at lorecraft dot com>
 * 
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 * 
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

package org.lorecraft.routes;

import java.util.ArrayList;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.StringTokenizer;

public class Utils {

	public static Map<String, String> convertToMap(String[] params) {
		Map<String, String> result = new LinkedHashMap<String, String>(params.length);
		for (String param : params) {
			String key = param.substring(0, param.indexOf(':'));
			String value = param.substring(param.indexOf(':') + 1);
			result.put(key, value);
		}
		return result;
	}

	public static String[] split(String path) {
		StringTokenizer tokenizer = new StringTokenizer(path, "/");
		List<String> result = new ArrayList<String>();
		while (tokenizer.hasMoreTokens())
			result.add(tokenizer.nextToken());
		return result.toArray(new String[] {});
	}

	public static String[] convertToParameterArray(final Map<Object, Object> mappingParams) {
		String[] params = new String[mappingParams.size()];
		int i = 0;
		for (Map.Entry<Object, Object> paramEntry : mappingParams.entrySet()) {
			Object key = paramEntry.getKey();
			Object value = paramEntry.getValue();
			if (value instanceof String[]) {
				for (String v : (String[])value) {
					params[i++] = (key.toString() + ":" + v);
				}
			} else {
				params[i++] = (key.toString() + ":" + value.toString());
			}
		}
		return params;
	}

	public static String buildPath(String[] pathElements) {	
		if (pathElements.length == 0) {
			return "";			
		}
		StringBuilder b = new StringBuilder();
		for (String p : pathElements) {
			b.append('/');
			b.append(p);
		}
		return b.toString();
	}

}
